Alloy asks $2,400 psf for One John St. penthouse

Alloy Development is listing its biggest penthouse at One John Street in Dumbo today for $8.8 million, or about $2,400 per square foot.

The penthouse is one of the most expensive condo units in Brooklyn to date, according to Jonathan Miller of appraisal firm Miller Samuel. It spans more than 3,600 square feet and boasts 27 windows. AJ Pires, a partner at Alloy, called the unit “fairly dramatic.” While Brooklyn townhouses have sold in that price range — at least 17 in the last decade — no single condominium units seem to have traded for that price yet, Miller said. If sold at the listing price, Miller continued, it’d be the most expensive unit of its kind in the borough, according to his data.

Miller continued that much like Soho and Tribeca in the 1980s — the neighborhoods with the highest average sale prices in Manhattan – Dumbo is full of former manufacturing buildings that are ripe for conversion.